KR100846319B1 - Muffler of have a catalyst - Google Patents

Muffler of have a catalyst Download PDF

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Publication number
KR100846319B1
KR100846319B1 KR1020070049831A KR20070049831A KR100846319B1 KR 100846319 B1 KR100846319 B1 KR 100846319B1 KR 1020070049831 A KR1020070049831 A KR 1020070049831A KR 20070049831 A KR20070049831 A KR 20070049831A KR 100846319 B1 KR100846319 B1 KR 100846319B1
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South Korea
Prior art keywords
noise
exhaust gas
chamber
exhaust
catalyst
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KR1020070049831A
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Korean (ko)
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정석윤
김혜삼
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대지금속 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N1/00—Silencing apparatus characterised by method of silencing
    • F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
    • F01N1/084—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling the gases flowing through the silencer two or more times longitudinally in opposite directions, e.g. using parallel or concentric tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N13/00—Exhaust or silencing apparatus characterised by constructional features ; Exhaust or silencing apparatus, or parts thereof, having pertinent characteristics not provided for in, or of interest apart from, groups F01N1/00 - F01N5/00, F01N9/00, F01N11/00
    • F01N13/18—Construction facilitating manufacture, assembly, or disassembly
    • F01N13/1838—Construction facilitating manufacture, assembly, or disassembly characterised by the type of connection between parts of exhaust or silencing apparatus, e.g. between housing and tubes, between tubes and baffles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N3/00—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust
    • F01N3/08—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous
    • F01N3/10—Exhaust or silencing apparatus having means for purifying, rendering innocuous, or otherwise treating exhaust for rendering innocuous by thermal or catalytic conversion of noxious components of exhaust
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
    • F01N2230/00—Combination of silencers and other devices
    • F01N2230/04—Catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Abstract

A muffler equipped with a catalyst is provided to simplify a structure by integrating the catalyst for purging exhaust gas discharged from a vehicle with the muffler for efficiently reducing noise, thus reducing assembling and manufacturing costs and increasing productivity, and gradually reducing low frequency noise in stages. A muffler equipped with a catalyst includes a casing(10). An inlet pipe(20) is installed at one portion of the casing to introduce exhaust gas into the casing. First, second, and third baffles(40a,40b,40c) are arranged at preset intervals in the casing to partition the casing into first, second, third, and fourth chambers(30a,30b,30c,30d) which gradually reduce low frequency noise of the exhaust gas flowing through the inlet pipe. The catalyst(50) purges the exhaust gas fed into the first chamber and guides the purged gas into the second chamber. First noise holes(70) are formed in the second baffle to secondarily reduce low frequency noise of the exhaust gas fed through the catalyst into the second chamber, prior to discharging the exhaust gas through an exhaust pipe(60) to the outside. Simultaneously, the exhaust gas is fed into the third chamber to reduce the low frequency noise of the exhaust gas again. Second noise holes(80) are formed in the third baffle to make exhaust noise enter the fourth chamber, thus reducing the exhaust noise.

Description

촉매가 장착된 머플러{ Muffler of have a catalyst }Muffler of have a catalyst}

도 1은 본 발명 머플러를 도시한 개략적인 사시도이며, 1 is a schematic perspective view of the muffler of the present invention;

도 2는 본 발명 머플러의 개략적인 단면도를 나타낸 것이다.Figure 2 shows a schematic cross-sectional view of the muffler of the present invention.

* 도면 중 주요 부분에 대한 부호의 설명** Explanation of symbols for main parts of the drawings *

10;케이스 20;유입관10; case 20; inlet pipe

30a,30b,30c,30d;제1,2,3,4챔버 40a,40b,40c;제1,2,3배플30a, 30b, 30c, 30d; 1, 2, 3, 4 chambers 40a, 40b, 40c; 1, 2, 3 baffles

50;촉매 60;배기관50; Catalyst 60; Exhaust Pipe

70;제1소음공 80;제2소음공70; first noise hole 80; second noise hole

본 발명은 자동차의 머플러에 관한 것으로, 특히 차량에서 배출되는 배기가스의 정화는 물론 소음을 효과적으로 감소시키도록 하는 촉매와 머플러를 일체화하여 구조를 단순화하므로써 조립 및 제조원가의 인하와 생산성을 높히도록 하며, 배 기가스의 저주파소음을 단계적이며 점차적으로 감소시키도록 하고자 발명한 촉매가 장착된 머풀러에 관한 것이다.The present invention relates to a muffler of an automobile, and in particular, by integrating a catalyst and a muffler to effectively reduce noise as well as purifying exhaust gas emitted from a vehicle, thereby simplifying a structure, thereby reducing assembly and manufacturing costs and increasing productivity. It relates to a muffler equipped with the catalyst invented to reduce the low frequency noise of the exhaust gas stepwise and gradually.

일반적으로 대형 자동차, 버스, 화물차 등은 배기가스의 배출량이 많은 데, 많은 양의 배기가스가 정화 및 소음감소되지 못한 상태에서 배기되는 경우 환경오염의 원인이 되는 동시에 소음공해의 원인이 된다. In general, large vehicles, buses, trucks, and the like generate a large amount of exhaust gas, and when a large amount of exhaust gas is exhausted without being purified and reduced in noise, it causes environmental pollution and noise pollution.

또, 자동차의 엔진에서 배출되는 배기가스는 고온 및 고압이므로 그대로 외부에 방출하면 급격한 가스의 팽창 때문에 폭발음이 발생하고, 또한 화재를 일으킬 염려도 있어 이것을 방지하기 위해 배기가스가 완만한 팽창을 하게 하여 압력 및 온도를 낮추어서 배기소음을 감소시키기 위해 배기파이프에 통상적으로 머플러를 장착하고 있다.In addition, the exhaust gas emitted from the engine of a car is high temperature and high pressure, so if it is released to the outside as it is, the explosion of the gas may occur due to the rapid expansion of the gas, and it may cause a fire. Exhaust pipes are typically equipped with mufflers to reduce pressure and temperature to reduce exhaust noise.

즉, 연소된 배기가스는 배기행정을 통해 고온고압으로 배기장치를 통해 외부로 배출시키는데, 이러한 배기장치는 각 실린더에서 배출되는 연소가스를 끌어모으는 배기매니폴드와 배기를 차량 뒤쪽의 배출구로 유도하는 배기파이프로 구성되어 있다.In other words, the combusted exhaust gas is discharged to the outside through the exhaust gas at high temperature and high pressure through the exhaust stroke, which exhausts the exhaust manifold which collects the combustion gas discharged from each cylinder and directs the exhaust to the exhaust port at the rear of the vehicle. It consists of an exhaust pipe.

여기서 배기매니폴드란 다기통엔진의 각 실린더에서 배출되는 배기가스를 집합하여 배기파이프로 유도하는 부품이고, 배기파이프는 배기매니폴드에서 나온 배기를 차량 뒤쪽의 배출구로 유도하는 통로를 말하며, 이 배기파이프에는 촉매와 머플러를 장착하여 배기가스의 유해물질을 걸러주는 동시에 소음을 감소시키도록 하는 것이다.Here, the exhaust manifold is a component that collects the exhaust gas discharged from each cylinder of the multi-cylinder engine and guides the exhaust pipe to the exhaust pipe. The exhaust pipe is a passage that guides the exhaust from the exhaust manifold to the exhaust port at the rear of the vehicle. The pipe is equipped with a catalyst and a muffler to filter out harmful substances in the exhaust gas while reducing noise.

이때 머플러는 배기파이프에 1곳 또는 2곳에 장착하여 차량의 배기량에 따라 서 저주파소음을 효과적으로 감소시키도록 하고 있다.At this time, the muffler is installed in one or two places on the exhaust pipe to effectively reduce the low frequency noise according to the vehicle exhaust volume.

그러나 일반적으로 엔진에서 배출된 배기가스는 머플러로 공급되기 전에 촉매부를 통과하면서 배기가스에 포함되어있는 유해성분이 어느 정도 제거된 후 머플러로 공급되는데, 엔진에서 배출되는 배기가스의 양이 증가하게 되면 촉매부에 의해 제거되지 못한 유해성분이 머플러를 통해 그대로 대기상에 방출될 뿐만 아니라 증가되는 배기가스의 양에 따라 그 배기소음 또한 증가하게 되는 결과를 가지게 된다.However, in general, the exhaust gas discharged from the engine is supplied to the muffler after the harmful components contained in the exhaust gas are removed to some extent while passing through the catalyst part before being supplied to the muffler. Not only the harmful components which are not removed by the part are released to the atmosphere through the muffler, but also have the result that the exhaust noise increases with the amount of the exhaust gas increased.

즉, 배기가스에는 유해성분이 포함되어 있어 환경오염의 주범이 되는 문제점이 있었다. 대기오염은 차량에서 배출되는 일산화탄소(CO), 탄화수소(HC), 질소산화물(NOx), soot 등에 의해 신체 각부의 산소결핍, 눈병, 폐기능장애, 광화학스모그 등의 현상으로 심각한 문제를 발생시키고 있고, 또한 이산화탄소에 의한 지구의 온난화 현상 등을 야기시키고 있는 실정이다. That is, the exhaust gas contains a harmful component has a problem that is the main culprit of environmental pollution. Air pollution causes serious problems such as carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NO x ), soot, etc. In addition, the situation is causing global warming due to carbon dioxide.

또한, 엔진의 배기가스를 직접 밖으로 내보내면 폭음이 되므로 머플러를 통하여 배기음을 감소시키게 되는데, 그러한 소음의 감소수단으로는 배기파이프 도중에 팽창실을 설치하므로서 내벽간의 음파반사나 공명현상을 응용하여 음을 감소하거나 배기의 통로에 음파와의 마찰에 의하여 음향에너지를 작게 하는 흡음재를 넣는 방법이 있다.In addition, the exhaust gas of the engine is directly outflowed to reduce the exhaust sound through the muffler, and as a means of reducing the noise, an expansion chamber is installed in the middle of the exhaust pipe, so that sound is reflected or resonant between the inner walls. There is a method of inserting a sound absorbing material that reduces or reduces acoustic energy by friction with sound waves in the passage of exhaust.

즉, 소음감소를 위한 머플러는 여러 형식이 있지만, 보통 원통형의 내부에 몇 개의 배플을 설치하여 배기가스가 이 배플의 장벽을 지날 때마다 음파의 간섭 및 압력 변동의 감소로 소음을 감소되게 하고 있었다.In other words, there are many types of muffler for noise reduction, but a few baffles are usually installed inside the cylinder to reduce the noise by reducing the interference of sound waves and pressure fluctuations whenever the exhaust gas crosses the baffle barrier. .

예컨데 배플을 내장시킨 종래의 머플러는, 등록 실용신안 제210094호, 동 제216627호, 동 제221993호, 동 제228832호, 동 제388808호, 동 제706545호, 등록 특허 제311425호 등이 대부분으로써, 이들 머플러는 배플에 의하여 공간이 구획된 챔버사이를 몇개의 파이프로 상호 연결시켜 각 챔버로 이송된 배기가스가 파이프를 통해 지그재그로 통과함에 따라 소음을 감소시키도록 하고 있고, 특히 일부 머플러는 챔버사이를 연결하는 파이프에 구멍을 무수히 형성하여 주 배기가스는 바로 통과하고 나머지 일부는 그 구멍을 통하여 챔버로 빠져나온 뒤 다시 다른 파이프를 통해 다시 이웃하는 챔버를 통과하는 등 이러한 과정을 몇 번 거치면서 저주파소음을 감소시킨 뒤 배출파이프로 배기토록 되어 있었다.For example, in the conventional muffler incorporating a baffle, registered utility models 210094, 216627, 221993, 228832, 388808, 706545, registered patent 311425, etc. As a result, these mufflers interconnect several chambers between chambers spaced by baffles to reduce noise as the exhaust gas zigzags through the pipes, especially some mufflers. A number of holes are formed in the pipes connecting the chambers so that the main exhaust gas passes straight through, the remaining part exits the chamber through the holes, and then passes through the adjacent chamber again through another pipe. The low frequency noise was reduced and the exhaust pipe was exhausted.

이러한 머플러는 내부에 각 챔버를 연결하기 위한 파이프를 다수개 내장하여 지그재그로 배기가스가 이송토록 구성되어 있어 구조가 복잡하여 배기가스의 배기효율이 불량하고, 또, 자동차 엔진에는 배기가스의 배기 부진으로 열이 발생하여 자동차엔진의 효율이 나빠지는 결함이 발생하였다. These mufflers have a plurality of pipes for connecting each chamber therein, and are configured to transfer exhaust gases in a zigzag manner, and the exhaust gas exhaust efficiency is poor due to the complicated structure. As a result, heat was generated, resulting in a defect that deteriorated the efficiency of the automobile engine.

또한 머플러는 촉매와 각각 별도로 장착되어 있어 구성부품의 개수가 늘어나 구조가 복잡할 뿐 아니라 조립 및 제조원가의 인상요인이 되는 문제점이 있었고, 대부분의 머플러는 비교적 간단하고 제작이 쉬운 것은 소음효과가 미흡하고 소음효과가 좋은 것은 지나치게 복잡한 구성으로 제작이 어려운 문제점들을 지니고 있었다. In addition, the muffler is installed separately from the catalyst, so the number of components is increased, the structure is complicated, and there is a problem that raises the assembly and manufacturing costs, most of the muffler is relatively simple and easy to manufacture has a low noise effect Good noise effect had problems that were difficult to manufacture due to overly complex configuration.

본 발명은 이러한 종래의 머플러를 개선하고자 하는 것으로, 차량에서 배출되는 배기가스의 정화는 물론 소음을 효과적으로 감소시키도록 하는 촉매와 머플러를 일체화하여 구조를 단순화하므로써 조립 및 제조원가의 인하와 생산성을 높히도록 하며, 배기가스의 저주파소음을 단계적이며 점차적으로 감소시키도록 하고자 촉매가 장착된 머풀러를 제공하는 데 그 목적이 있다.The present invention is to improve such a conventional muffler, and to reduce the assembly and manufacturing cost and increase the productivity by simplifying the structure by integrating the muffler with the catalyst to effectively purify the exhaust gas discharged from the vehicle as well as to reduce the noise. In addition, the object of the present invention is to provide a catalyst-equipped muffler in order to reduce the low frequency noise of the exhaust gas stepwise and gradually.

본 발명의 촉매가 장착된 머플러는, 차량의 배기파이프에 장착되는 촉매와 머플러에 있어서,The muffler equipped with the catalyst of the present invention is a catalyst and a muffler mounted on an exhaust pipe of a vehicle.

케이스와, 케이스의 일측에 각각 설치되어 배기가스의 유입 및 배기토록 하는 유입관 및 배기관과, 케이스내에 다수의 챔버가 각각 형성되도록 공간을 구획하여 각 챔버로 배기가스를 이송시키면서 저주파소음을 단계적으로 감소시키도록 하는 소음감소수단과, 이웃하는 챔버로 이송되는 배기가스내의 유해물질을 걸러내어 정화시키도록 하는 촉매로 구성한 것이 본 발명의 기본적인 특징이다.A case, an inlet pipe and an exhaust pipe installed at one side of the case to allow the inflow and exhaust of exhaust gas, and a space is partitioned so that a plurality of chambers are formed in the case, and the exhaust gas is transferred to each chamber step by step. It is a basic feature of the present invention that it is composed of a noise reduction means for reducing and a catalyst for filtering and purifying the harmful substances in the exhaust gas transferred to the adjacent chamber.

상기 소음감소수단은, 케이스내에 공간이 구획되게 제1,2,3배플을 설정된 간격으로 배치한 뒤 유입관을 통해 유입되는 배기가스의 저주파소음을 단계적으로 감소시키는 제1,2,3,4챔버와, 상기 제1챔버에서 1차로 배기가스의 저주파소음을 감소시킨 뒤 제2챔버로 유입된 배기가스의 저주파소음을 2차로 감소시켜 배기가스는 배기관을 통해 외부로 배기시키는 동시에 배기가스의 저주파소음을 제3챔버로 유입시키도록 제2배플에 형성되는 제1소음공과, 제3챔버로 유입된 배기소음을 3차로 감소시켜 다시 제4챔버로 유입되게 하여 4차로 감소시키도록 제3배플에 형성되는 제2소 음공으로 구성한다.The noise reduction means may include first, second and third baffles arranged at predetermined intervals so as to partition the space in the case, and then first, second, third and fourth step by step to reduce low frequency noise of the exhaust gas flowing through the inlet pipe. The low frequency noise of the exhaust gas is firstly reduced in the chamber and the first chamber, and the low frequency noise of the exhaust gas introduced into the second chamber is secondly reduced to exhaust the exhaust gas to the outside through the exhaust pipe and at the same time, the low frequency of the exhaust gas. A first noise hole formed in the second baffle to introduce noise into the third chamber, and exhaust noise introduced into the third chamber to the third chamber to be introduced into the fourth chamber again to reduce the fourth baffle. It consists of the 2nd small sound hole formed.

상기 제1소음공의 개수는 제2소음공 보다 많이 형성되게 하여 순간적으로 팽창 유입되는 배기가스의 저주파소음을 점차적으로 완화시켜 감소시키도록 하며, 그 비율을 2-3배로 구성되도록 하는 것이 바람직하다.The number of the first noise holes is formed more than the second noise holes to gradually reduce and reduce the low frequency noise of the exhaust gas that is momentarily expanded and introduced, and the ratio is preferably 2-3 times. .

상기 촉매는 제1챔버로 유입된 배기가스가 통과하면서 정화되는 한편 제2챔버로 유입되도록 제1,2,3배플에 설치한다. The catalyst is installed in the first, second and third baffles so that the exhaust gas introduced into the first chamber passes through and is purified.

이하 본 발명의 머플러에 대한 실시예에 대하여 상세히 설명하면 다음과 같다.Hereinafter, an embodiment of the muffler of the present invention will be described in detail.

도면에서 도 1은 본 발명 머플러를 도시한 개략적인 사시도이며, 도 2는 본 발명 머플러의 개략적인 단면도를 나타낸 것이다.1 is a schematic perspective view of the muffler of the present invention, Figure 2 is a schematic cross-sectional view of the muffler of the present invention.

도 1 및 도 2에서 부호 10은 머플러의 케이스이며, 그 케이스(10)의 일측에 설치되어 유입관(20)과 배기관(60)을 설치하여 배기매니폴드를 거쳐서 배기되는 배기가스를 유입 및 배기되게 한다.In FIG. 1 and FIG. 2, reference numeral 10 denotes a case of a muffler, which is installed at one side of the case 10 to install an inlet pipe 20 and an exhaust pipe 60 to inlet and exhaust exhaust gas exhausted through an exhaust manifold. To be.

상기 케이스에는 그 내부에 다수의 챔버가 각각 형성되도록 공간을 구획하여 각 챔버로 배기가스를 이송시키면서 저주파소음을 단계적으로 감소시키도록 하는 소음감소수단과, 이웃하는 챔버로 이송되는 배기가스내의 유해물질을 걸러내어 정화시키도록 하는 촉매로 구성한다.The case includes a noise reduction means for dividing a space so that a plurality of chambers are formed therein, and gradually reducing low frequency noise while transferring exhaust gas to each chamber, and harmful substances in exhaust gas transferred to neighboring chambers. It is composed of a catalyst for filtering and purifying.

상기 소음감소수단은, 케이스(10)내에 공간을 구획하여 제1,2,3,4챔 버(30a)(30b)(30c)(30d)가 형성되도록 설정된 간격으로 배치한 뒤 유입관(20)을 통해 유입되는 배기가스의 저주파소음을 단계적으로 감소시키는 제1,2,3배플(40a)(40b)(40c)과, 상기 제1챔버(30a)에서 1차로 배기가스의 저주파소음을 감소시킨 뒤 제2챔버(30b)로 유입된 배기가스의 저주파소음을 2차로 감소시켜 배기가스는 배기관(60)을 통해 외부로 배기시키는 동시에 배기가스의 저주파소음을 제3챔버(30c)로 유입시키도록 제2배플(40b)에 형성되는 제1소음공(70)과, 제3챔버(30c)로 유입된 배기소음을 3차로 감소시켜 다시 제4챔버(30d)로 유입되게 하여 4차로 감소시키도록 제3배플(40c)에 형성되는 제2소음공(80)으로 구성한다.The noise reduction means is arranged at intervals set so that the first, second, third, and fourth chambers 30a, 30b, 30c, and 30d are formed by partitioning a space in the case 10. The first, second and third baffles 40a, 40b and 40c which gradually reduce the low frequency noise of the exhaust gas flowing through the exhaust gas, and the low frequency noise of the exhaust gas are primarily reduced in the first chamber 30a. After the low frequency noise of the exhaust gas introduced into the second chamber 30b is reduced to secondary, the exhaust gas is exhausted to the outside through the exhaust pipe 60 and at the same time, the low frequency noise of the exhaust gas is introduced into the third chamber 30c. The first noise hole 70 formed in the second baffle 40b and the exhaust noise introduced into the third chamber 30c are reduced in the third order to be introduced into the fourth chamber 30d and reduced in the fourth order. And a second noise hole 80 formed in the third baffle 40c.

즉, 유입관(20)으로 유입되는 배기가스는 제1챔버(30a)의 공간에 의하여 팽창되면서 1차로 저주파소음이 감소되도록 한다. In other words, the exhaust gas flowing into the inlet pipe 20 is expanded by the space of the first chamber 30a so that low-frequency noise is primarily reduced.

그리고 제1챔버(30a)로 유입된 배기가스를 통과하면서 제2챔버(30b)로 유입되게 안내하면서 유해가스를 정화하도록 제1,2,3배플(40a)(40b)(40c) 사이를 촉매(50)로 연결하며, 이때 촉매(50)는 제3,4챔버(30c)(30d)와는 차단되게 한다. Then, the catalyst passes between the first, second and third baffles 40a, 40b and 40c to purify the noxious gas while guiding the second chamber 30b while passing through the exhaust gas introduced into the first chamber 30a. 50, wherein the catalyst 50 is blocked from the third and fourth chambers 30c and 30d.

또 제2챔버(30b)로 유입된 배기가스는 좁은 공간의 촉매(50)를 통과하다가 공간의 확장으로 팽창되면서 2차로 저주파소음을 감소시키고, 제2챔버(30b)에서 정화 및 소음감소된 배기가스는 배기관(60)을 통해 외부로 배기시키도록 배기관(60)이 케이스(10) 및 제1,2,3배플(40a)(40b)(40c)로 관통되게 외부로 설치한다. 이때 제3,4챔버(30c)(30d)와 배기관(60)은 상호 차단되어 배기가스의 누설이 없도록 한다.In addition, the exhaust gas flowing into the second chamber 30b passes through the catalyst 50 in the narrow space and expands as the space expands, thereby reducing the low frequency noise in the second place, and purifying and reducing the noise in the second chamber 30b. The exhaust pipe 60 is installed to the outside so that the gas passes through the case 10 and the first, second, and third baffles 40a, 40b, and 40c to exhaust the gas to the outside through the exhaust pipe 60. At this time, the third and fourth chambers 30c and 30d and the exhaust pipe 60 are blocked to prevent leakage of the exhaust gas.

상기 제2배플(40b)에는 제2챔버(30b)와 제3챔버(30c)가 상호 연통되게 다수 개의 제1소음공(70)을 형성하여, 제2챔버(30b)에서 2차로 저주파소음이 감소된 배기가스를 배기관(60)으로 배기시키는 동시에 제2챔버(30b)에 머물고 있는 배기가스 의 저주파소음을 제1소음공(70)을 통해 제3챔버(30c)로 유입시켜 3차로 감소시키도록 한다.A plurality of first noise holes 70 are formed in the second baffle 40b such that the second chamber 30b and the third chamber 30c communicate with each other, so that low-frequency noise is secondarily generated in the second chamber 30b. While exhausting the reduced exhaust gas to the exhaust pipe 60, the low-frequency noise of the exhaust gas remaining in the second chamber 30b flows into the third chamber 30c through the first noise hole 70 and is reduced in the third order. To do that.

그리고 제3배플(40c)에는 제3챔버(30c)와 제4챔버(30d)가 상호 연통되게 다수개의 제2소음공(80)을 형성하여 제3챔버(30c)로 유입된 저주파소음을 다시 제4챔버(30d)로 유입되게 하여 4차로 저주파소음을 감소시키도록 한다.In addition, a plurality of second noise holes 80 are formed in the third baffle 40c such that the third chamber 30c and the fourth chamber 30d communicate with each other, and the low frequency noise introduced into the third chamber 30c is again. Into the fourth chamber (30d) to reduce the low-frequency noise in the fourth order.

이때, 제1소음공(70)의 개수는 제2소음공(80) 보다 많이 형성되게 하여 순간적으로 팽창 유입되는 저주파소음을 점차적으로 압력을 완화시켜 소음을 감소시키도록 하며, 그 소음공의 비율을 2-3배로 구성되게 한 것은 압력을 점차적이면서 자연스럽게 완화시켜 저주파소음을 감소시키고자 하는 것이다.At this time, the number of the first noise hole 70 is to be formed more than the second noise hole 80 to gradually reduce the low-frequency noise flows into the instantaneously expanded pressure to reduce the noise, the ratio of the noise hole The two to three times is designed to reduce the low frequency noise by easing the pressure gradually and naturally.

즉, 배기가스의 압력과 소음은 비례하면서 유입 및 배기되므로 이를 점차적으로 완화시켜 줌으로서 저주파소음을 효과적으로 감소시킬 수가 있는 것이다.That is, since the pressure and noise of the exhaust gas are proportionally introduced and exhausted, the low frequency noise can be effectively reduced by gradually mitigating them.

이와 같이 구성된 본 발명은, 엔진에서 배출되어 유입관(20)으로 유입되는 배기가스는 케이스(10)의 제1챔버(30a)로 이동하게 되며, 제1챔버(30a)로 이동되는 배기가스는 공간의 확장으로 팽창되면서 저주파소음이 1차적으로 감소되어 촉매(50)를 통해 제2챔버(30b)로 이동하게 된다.According to the present invention configured as described above, the exhaust gas discharged from the engine and introduced into the inlet pipe 20 is moved to the first chamber 30a of the case 10, and the exhaust gas moved to the first chamber 30a is As the expansion of the space is expanded, the low frequency noise is primarily reduced to move to the second chamber 30b through the catalyst 50.

촉매(50)를 통과하는 배기가스는 차량에서 배출되는 일산화탄소(CO), 탄화수소(HC), 질소산화물(NOx), soot 등이 정화되면서 제2챔버(30b)로 이동하게 되는 데, 이때 공간이 협소한 촉매(50)를 통과한 배기가스는 공간이 확장된 제2챔버(30b)에서 다시 팽창하면서 저주파소음을 2차 감소시키게 된다.The exhaust gas passing through the catalyst 50 is moved to the second chamber 30b while carbon monoxide (CO), hydrocarbons (HC), nitrogen oxides (NO x ), soot, etc. discharged from the vehicle are purified. The exhaust gas passing through the narrow catalyst 50 expands again in the second chamber 30b in which the space is expanded to reduce the low frequency noise secondarily.

제2챔버(30b)에 의해서 2차 감소된 배기가스는 배기관(60)을 통해서 외부로 배출이 되는 데, 제2챔버(30b)에 머물고 있던 배기가스의 저주파소음은 제2배플(40b)의 제1소음공(70)을 통해서 제3챔버(30c)로 이동하게 되며, 1,2차에 거쳐서 감소된 저주파소음은 다수의 구멍인 제1소음공(70)을 통과하면서 다시 확장된 제3챔버(30c)에서 3차 감소하게 되고, 제3챔버(30c)에서 감소된 저주파소음은 다시 제3배플(40c)의 제2소음공(80)을 통해서 제4챔버(30d)로 이동하여 4차로 감소하게 된다.The exhaust gas secondary reduced by the second chamber 30b is discharged to the outside through the exhaust pipe 60, and the low frequency noise of the exhaust gas staying in the second chamber 30b is reduced by the second baffle 40b. The third noise is moved to the third chamber 30c through the first noise hole 70, and the low frequency noise reduced through the first and second passes through the first noise hole 70, which is a plurality of holes, and then expanded again. The third frequency decreases in the chamber 30c, and the low frequency noise reduced in the third chamber 30c moves back to the fourth chamber 30d through the second noise hole 80 of the third baffle 40c. Decrease by car.

즉, 유입관(20)을 통해서 유입되는 배기가스의 저주파소음은 제1,2,3,4챔버(30a),(30b),(30c),(30d)로 이동하면서 순차적으로 감소하여 마지막 챔버에서는 거의 사라지게 되는 것이며, 제1소음공(70)과 제2소음공(80)의 구멍개수의 차이는 제2배플(40b)의 제1소음공(70)으로 통과하는 소음이 제3배플(40c)의 제2소음공(80) 보다는 크게 나타나므로 제1소음공(70)의 구멍개수를 더 많이 형성하여야 된다.That is, the low frequency noise of the exhaust gas flowing through the inlet pipe 20 is sequentially reduced while moving to the first, second, third, and fourth chambers 30a, 30b, 30c, and 30d. In the first noise hole 70 and the second noise hole 80, the noise passing through the first noise hole 70 of the second baffle 40b is reduced. Since it appears larger than the second noise hole 80 of 40c), the number of holes of the first noise hole 70 should be formed more.

이러한 저주파소음은 감소원리는 제1,2,3,4챔버(30a),(30b),(30c),(30d)내에서 내벽간의 음파반사나 공명현상을 응용하여 음을 감소하게 되는 것으로 이는 이미 널리 알려진 원리를 본 발명에서는 이를 응용한 것이다.The low frequency noise is reduced by applying sound reflection or resonance between inner walls within the first, second, third and fourth chambers 30a, 30b, 30c, and 30d. The principle widely known is the present invention.

이와 같이 본 발명의 머플러는 배기가스의 정화는 물론 소음을 점차적이면서 효과적으로 감소시키도록 구조를 단순화하여 주므로서 생산성을 높힐 수 있는 효과가 있다.As described above, the muffler of the present invention has the effect of increasing productivity while simplifying the structure to reduce the exhaust gas as well as gradually and effectively reduce the noise.

Claims (5)

삭제delete 케이스와, 케이스의 일측에 각각 설치되어 배기가스의 유입 및 배기토록 하는 유입관 및 배기관과, 케이스내에 다수의 챔버가 각각 형성되도록 공간을 구획하여 각 챔버로 배기가스를 이송시키면서 저주파소음을 단계적으로 감소시키도록 하는 소음감소수단과, 이웃하는 챔버로 이송되는 배기가스내의 유해물질을 걸러내어 정화시키도록 하는 촉매로 구성된 촉매가 장착된 머플러에 있어서,A case, an inlet pipe and an exhaust pipe installed at one side of the case to allow the inflow and exhaust of exhaust gas, and a space is partitioned so that a plurality of chambers are formed in the case, and the exhaust gas is transferred to each chamber step by step. In the muffler equipped with a catalyst composed of a noise reduction means for reducing and a catalyst for filtering and purifying the harmful substances in the exhaust gas to the neighboring chamber, 상기 소음감소수단은, 케이스(10)내에 공간이 구획되게 제1,2,3배플(40a)(40b)(40c)을 설정된 간격으로 배치한 뒤 유입관(20)을 통해 유입되는 배기가스의 저주파소음을 단계적으로 감소시키는 제1,2,3,4챔버(30a)(30b)(30c)(30d)와, 상기 제1챔버(30a)에서 1차로 배기가스의 저주파소음을 감소시킨 뒤 제2챔버(30b)로 유입된 배기가스의 저주파소음을 2차로 감소시켜 배기가스는 배기관(60)을 통해 외부로 배기시키는 동시에 배기가스의 저주파소음을 제3챔버(30c)로 유입시키도록 제2배플(40b)에 형성되는 제1소음공(70)과, 제3챔버(30c)로 유입된 배기소음을 3차로 감소시켜 다시 제4챔버(30d)로 유입되게 하여 4차로 감소시키도록 제3배플(40c)에 형성되는 제2소음공(80)으로 구성한 것을 특징으로 하는 촉매가 장착된 머플러.The noise reduction means is arranged in the case 10, the first, second, third baffles (40a, 40b, 40c) are arranged at a predetermined interval of the exhaust gas flowing through the inlet pipe 20 First, second, third, and fourth chambers 30a, 30b, 30c, and 30d for gradually reducing low-frequency noise, and first reducing the low-frequency noise of the exhaust gas in the first chamber 30a. The second low frequency noise of the exhaust gas introduced into the second chamber (30b) to the secondary to exhaust the exhaust gas to the outside through the exhaust pipe 60 and at the same time to introduce the low frequency noise of the exhaust gas into the third chamber (30c) The first noise hole 70 formed in the baffle 40b and the exhaust noise introduced into the third chamber 30c are reduced in the third order to be introduced into the fourth chamber 30d and reduced in the fourth order. A muffler equipped with a catalyst, comprising a second noise hole (80) formed in the baffle (40c). 청구항 2에 있어서, 제1소음공(70)의 개수는 제2소음공(80) 보다 많이 형성되게 하여 순간적으로 팽창 유입되는 배기가스의 저주파소음을 점차적으로 완화시켜 감소시키도록 한 것을 특징으로 하는 촉매가 장착된 머플러.3. The method of claim 2, wherein the number of the first noise holes 70 is greater than that of the second noise holes 80, thereby gradually reducing and reducing the low frequency noise of the exhaust gas that is momentarily expanded and introduced. Muffler with catalyst. 청구항 3에 있어서, 제1소음공(70)과 제2소음공(80)의 비율을 2-3배로 구성되도록 한 것을 특징으로 하는 촉매가 장착된 머플러.The muffler equipped with a catalyst according to claim 3, wherein the ratio of the first noise hole (70) and the second noise hole (80) is made 2-3 times. 삭제delete
KR1020070049831A 2007-05-22 2007-05-22 Muffler of have a catalyst KR100846319B1 (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468850A (en) * 2009-03-23 2010-09-29 Vortex Performance Exhausts Ltd Exhaust muffler
CN103939180A (en) * 2014-04-28 2014-07-23 成都陵川特种工业有限责任公司 Automobile silencer
CN105422232A (en) * 2015-12-03 2016-03-23 安徽江淮汽车股份有限公司 Catalysis silencer structure
CN113775392A (en) * 2021-09-24 2021-12-10 无锡威孚力达催化净化器有限责任公司 Aftertreatment structure and system suitable for natural gas engine

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KR100525770B1 (en) * 2004-11-01 2005-11-02 세종공업 주식회사 Catalytic converter apparatus for exhaust gas inserted muffler

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KR100525770B1 (en) * 2004-11-01 2005-11-02 세종공업 주식회사 Catalytic converter apparatus for exhaust gas inserted muffler

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2468850A (en) * 2009-03-23 2010-09-29 Vortex Performance Exhausts Ltd Exhaust muffler
GB2468850B (en) * 2009-03-23 2011-10-12 Vortex Performance Exhausts Ltd An improved exhaust filter
GB2479655A (en) * 2009-03-23 2011-10-19 Vortex Performance Exhausts Ltd Catalytic converter with accelerator tubes
GB2479655B (en) * 2009-03-23 2012-07-18 Vortex Performance Exhausts Ltd An improved exhaust filter
GB2468850B8 (en) * 2009-03-23 2012-09-05 Vortex Performance Exhausts Ltd An improved exhaust filter
US8627921B2 (en) 2009-03-23 2014-01-14 Barry Mead Exhaust filter
CN103939180A (en) * 2014-04-28 2014-07-23 成都陵川特种工业有限责任公司 Automobile silencer
CN105422232A (en) * 2015-12-03 2016-03-23 安徽江淮汽车股份有限公司 Catalysis silencer structure
CN113775392A (en) * 2021-09-24 2021-12-10 无锡威孚力达催化净化器有限责任公司 Aftertreatment structure and system suitable for natural gas engine
CN113775392B (en) * 2021-09-24 2022-06-21 无锡威孚力达催化净化器有限责任公司 Aftertreatment structure and system suitable for natural gas engine

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